Finding the Fourth Proportional to 3,759,619.38, 5,639,538.42 and 919,730.63
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Solution
The fourth proportional to 3,759,619.38, 5,639,538.42 and 919,730.63 is: 1,379,622.69
Step by Step Solution
- Step 1: Write the proportion equation
3,759,619.38 : 5,639,538.42 = 919,730.63 : x - Step 2: Convert to fraction form
3,759,619.38/5,639,538.42 = 919,730.63/x - Step 3: Cross multiply
3,759,619.38x = 5,639,538.42 × 919,730.63 - Step 4: Simplify right side
3,759,619.38x = 5,186,856,195,738.11 - Step 5: Solve for x
x = 5,186,856,195,738.11/3,759,619.38 - Step 6: Final answer
x = 1,379,622.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.